Rapier Series Switch Hardware Reference - Allied Telesis
Rapier Series Switch Hardware Reference - Allied Telesis
Rapier Series Switch Hardware Reference - Allied Telesis
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<strong>Hardware</strong> <strong>Reference</strong> 21<br />
C613-03020-00 REV J<br />
If a twisted pair cable is used to join two ports and either both ports are<br />
labelled with an “X” or neither port is labelled with an “X”, a crossover must be<br />
included in the wiring. Table 6 lists the RJ-45 crossover wiring pin assignments.<br />
Table 6: RJ-45 Pin assignments, crossover cable<br />
End 1 End 2<br />
1 (TX+) 3 (TX+)<br />
2 (TX-) 6 (TX-)<br />
3 (RX+) 1 (RX+)<br />
6 (RX-) 2 (RX-)<br />
For 1000BASE-T RJ-45 cables, all four pairs are used and the cable is wired in a<br />
straight-through configuration. Table 7 lists the pin assignments.<br />
Table 7: Pin assignments, 1000BASE-T RJ-45 cable<br />
End 1 End 2<br />
1 Pair 1+ 1 Pair 1+<br />
2 Pair 1- 2 Pair 1-<br />
3 Pair 2+ 3 Pair 2+<br />
6 Pair 2- 6 Pair 2-<br />
4 Pair 3+ 4 Pair 3+<br />
5 Pair 3- 5 Pair 3-<br />
7 Pair 4+ 7 Pair 4+<br />
8 Pair 4- 8 Pair 4-
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